55015315 has 16 divisors (see below), whose sum is σ = 70076448. Its totient is φ = 41319936.

The previous prime is 55015309. The next prime is 55015327. The reversal of 55015315 is 51351055.

It is a cyclic number.

It is not a de Polignac number, because 55015315 - 2⁷ = 55015187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55015315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61864 + ... + 62746.

It is an arithmetic number, because the mean of its divisors is an integer number (4379778).

Almost surely, 2^55015315 is an apocalyptic number.

55015315 is a deficient number, since it is larger than the sum of its proper divisors (15061133).

55015315 is a wasteful number, since it uses less digits than its factorization.

55015315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 55015315 is about 7417.2309523164. The cubic root of 55015315 is about 380.3305411136.

It can be divided in two parts, 5501 and 5315, that added together give a square (10816 = 104²).

The spelling of 55015315 in words is "fifty-five million, fifteen thousand, three hundred fifteen".